warning bit

warning bit

Suppress a couple of 'dead increment' diagnostics from the clang static
analyzer.  The assignments are dead, but keeping the variable up to date
is more valuable (in case someone someday changes the code to use the
affected variable somewhere farther along in that function) than changing
the code to avoid the assignments in order to prevent the diagnostic.

This will only work to suppress the analyzer's diagnostic messages if
either FORCE_ARG_USAGE or GCC_WARN is defined when compiling makemon.c.